Finding the Fourth Proportional to 69,780,106.56, 96,296,551.68 and 38,839,611.84
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Solution
The fourth proportional to 69,780,106.56, 96,296,551.68 and 38,839,611.84 is: 53,598,666.91
Step by Step Solution
- Step 1: Write the proportion equation
69,780,106.56 : 96,296,551.68 = 38,839,611.84 : x - Step 2: Convert to fraction form
69,780,106.56/96,296,551.68 = 38,839,611.84/x - Step 3: Cross multiply
69,780,106.56x = 96,296,551.68 × 38,839,611.84 - Step 4: Simplify right side
69,780,106.56x = 3,740,120,688,781,700.50 - Step 5: Solve for x
x = 3,740,120,688,781,700.50/69,780,106.56 - Step 6: Final answer
x = 53,598,666.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.